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Here's where I think you may have a problem, the factory amp is not just any standard amp like what you are replacing it with, it is a CAN-BUS amp, as in CAN-BUS high and low as can be seen in the diagram of the amp pinouts, and being that the inputs show as 3 for NAV, 3 for stereo, and 2 for CAN-BUS, and as the stereo inputs are left to right and our parking warning sounds are front and rear, I believe that the CAN-BUS handles that in the factory amp, i could be wrong, so I will go look at the wiring diagram for the PDC now.
Here's where I think you may have a problem, the factory amp is not just any standard amp like what you are replacing it with, it is a CAN-BUS amp, as in CAN-BUS high and low as can be seen in the diagram of the amp pinouts, and being that the inputs show as 3 for NAV, 3 for stereo, and 2 for CAN-BUS, and as the stereo inputs are left to right and our parking warning sounds are front and rear, I believe that the CAN-BUS handles that in the factory amp, i could be wrong, so I will go look at the wiring diagram for the PDC now.
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Yes I was looking at that drawing of yours & thought as much what you have mentioned, sure I'll look forward to your next post ...
Wow this is going to take a little time, long night ahead. Thanks Johnny.
Correct me if I am wrong, being that you have replaced the original head unit you will not be using the OEM NAV. CD player, OEM phone inputs, or CAN-BUS wires that where plugged into the original head unit via the green plug.
Last edited by Johnny Hotspur GT; 03-25-2019 at 05:28 PM.
Reason: green plug
They also advised me I can do away with the stock amp and connect the sensors to the the outgoing loom to the speakers or have 2 total separate speakers for the parking sensors hidden away in the front doors or under the dash.
The Ben-Hur panel is a total stand alone system and dose not have any direct contact with the vehicle ...
Rico,
Please clarify this, I advise you to call and ask them how you are to get sound for PDC when it runs on CAN system, also you say the BH system is a stand alone, how do you see your suspension adjustments on screen then ?
Correct, replaced the head unit to an Alpine INE-W710D, the unit dose everything other than the parking sensors, the new head unit only uses one RCA which is left & right plugged into a unit that sends the audio for everything to the stock amp.
I will be removing the RCA cable and using both RCA's front & rear to the new amp. this will then only send the audio for the parking sensors to the stock amp.
The BenHur unit that is also fitted has a screen all info is seen on that screen re the vehicle ie heating, ride height and so on, The head unit dose the music, video, satnav & phone all displayed on the head unit.
I asked the design team who made the BenHur unit about my project, they had no problems with what I was going to do. They did mention to do away with the stock amp if I wanted & have separate speakers under the dash for the parking sensors, or just replace the plugs back into the stock amp after I join my wiring from the new amps.
The system is up & running for nearly 12 months, all Im doing is changing where the audio is going to exit from, instead of the stock amp Im installing 2 new amps and replacing the speakers. The BenHur system work great, The head unit is fantastic, total voice control don't have to take my eyes off the road, dose phone, text, WhatsApp, emails and lots of other stuff, works on Google App as well as Alpine Connect ...
Last edited by Rico.Adams; 03-25-2019 at 06:15 PM.
Okay, I searched and found this picture, this explains it all, I assume the suspension shows up on the little screen with the hvac, so the green plug gets used with the BH for its full use, you problem is that you want your 3 or more after market amps to provide music sound, I follow what you are thinking as to piggy backing the speaker leads together, but I am not sure that's a good move, even if you only tapped into 4 mid range speakers (2 front, 2 rear) for the 4 corners for PDC beeping, I think you would end up with some interference, I would think if you went that route you would remove all but the 4 mid speakers from the 23 and 24 pin plugs, but as I say that I don't like it, your other amp(s) feeding the mids (piggy backed) will be back feeding into the stock amp, hence maybe interference noise, maybe your best bet is to pull all the speaker pins (besides the 4 mids, cut them to leave you pigtails) out of the 23 and 24 pin plugs, then plug the 23 and 24 pin plugs into the stock amp and install 4 small speakers at the 4 corners wired to the pigtails at the 23 and 24 pin plugs....
Okay, I searched and found this picture, this explains it all, I assume the suspension shows up on the little screen with the hvac, so the green plug gets used with the BH for its full use, you problem is that you want your 3 or more after market amps to provide music sound, I follow what you are thinking as to piggy backing the speaker leads together, but I am not sure that's a good move, even if you only tapped into 4 mid range speakers (2 front, 2 rear) for the 4 corners for PDC beeping, I think you would end up with some interference, I would think if you went that route you would remove all but the 4 mid speakers from the 23 and 24 pin plugs, but as I say that I don't like it, your other amp(s) feeding the mids (piggy backed) will be back feeding into the stock amp, hence maybe interference noise, maybe your best bet is to pull all the speaker pins (besides the 4 mids, cut them to leave you pigtails) out of the 23 and 24 pin plugs, then plug the 23 and 24 pin plugs into the stock amp and install 4 small speakers at the 4 corners wired to the pigtails at the 23 and 24 pin plugs....
Damn... I hope that makes sense....
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Lol ... I Fully follow what you're saying, I hooked up a mock amp on to the loom to see what would happen and it worked ok, no interference but Ive not tested the whole system ie hook up all the speakers and 2 amps.
I think thats a great idea to pull all the pins out but the mids, but that means more wiring to each corner and adding more speakers, so the 4 mids carry the sound for the PDC Bleeping ? 23 & 24 pins Im a bit lost on these pins ...
Last edited by Rico.Adams; 03-25-2019 at 06:58 PM.
Ok so to recap, the 4 mids carry the PDC bleeping, if I remove all the pins but the 4 mids, wire up the 2 new amps as planned, splice into the 4 mids wiring join the wiring from the new amps onto the 4 mids and replace the plugs into the stock amp.
How will the 4 extra speakers be wired, maybe its a bit late in the day for my brain to comply, oh no I get it ... its late ... ok take all the pins out including the mids, then wire up 4 new speakers in the pins where the mids were wired on plug 23 & 24 ... simple
Last edited by Rico.Adams; 03-25-2019 at 07:27 PM.
Good point Rico,
I am not 100% that the beeping comes only from the mids, and or the tweeters, before you cut anything can you test the PDC with the stock amp plugged in to verify just where the beeping comes from ?
Wait a minute, you didn't have rear tweets, so it must come from the rear mids for the read PDC, but check all anyway as to the front, and verify rear.
03-25-2019 | 03:58 PM
