I used a PAC RP4-GM11 Module to install a Pioneer DEX-P99RS into my 2005 Silverado CC LT with Bose and Onstar. After the install I'm getting nothing from my subwoofer. I have tried everything on the head unit with no luck. I also combined all the outputs on the H/U to get a combined mono which i split back out to all 4 of the inputs on the PAC module, using RCA Y cables, and still got nothing. I did a google search and nothing turned up.
Thanks!
Since i know someone is going to ask why I installed a P99RS with the stock Bose system. I have almost everything to complete my system, I don't have time. I also have other priorities. I decided I needed the Bluetooth all of a sudden so I figured if I'm going to install anything might as well be the P99RS.
Because it's a different amp. There are 3 wires required to turn the amp on, power, ground, and remote. Check all of those wires at the sub amp, which I believe is in the console. It would be easier to check all the fuses first though.
I had @benz88 do a VIN run on my truck, and it only shows the one AMP which is mounted inside the center console. There's also about 32 wires feeding into it
Other plausible explanation: The sub gets it's signal from the front or rear channels, the amp has a low pass filter built into it and your HU has high pass filter turned on for front and/or rear. Therefore, it would be virtually no pass.
I also combined all the outputs on the H/U to get a combined mono which i split back out to all 4 of the inputs on the PAC module, using RCA Y cables, and still got nothing.
i know someone is going to ask why I installed a P99RS with the stock Bose system. I have almost everything to complete my system, I don't have time. I also have other priorities. I decided I needed the Bluetooth all of a sudden so I figured if I'm going to install anything might as well be the P99RS.
It has 4 sets of outputs I combined them all with RCA Y-cables to convert it to one set of outputs which I then split with RCA Y-cables to the front and rear inputs on the vehicle to eliminate any chance of a HPF on the HU
We call that screwing the pooch. That could potentially damage the HU, not how it was intended to work at all, and should not be wired that way. What you've done doesn't eliminate HPF on the HU, disabling the HPF is how you eliminate the chance.
Maybe that's your issue. You don't have an lpf set for the sub so it's not playing what it should be
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