Le7316

Hello All ,

Just like everyone here I decided to get the sub from RSX one and installed to my AP2 and I'm having the issue with the thump sound whenever I turn on / off the car . Does anyone here have this issue and how do you solve it ? I have ran thru a few threads but none of them mentioned about it .

Anyways , here is what I have connected right now :

1. From the HU ( Alpine ) run a pairs of RCA ( sub out ) directly to Bose Amp/Sub ( connected to purple & yellow wires here ).
2. Run a black ( ground) and a red wire ( +12V ) from the HU connocted to Bose Am/Sub ( ground & 12v here).
3. What am I missing here ? I just completed 4 wires from the Bose Sub .

Again , everything works great except that I have a thump sound every time I turn on / off the car . I'll be surprised if I have to use the Hi-low converter .

AE_Racer

You ran the ground wire from the headunit to the amp? You should run the ground from the amp to the chassis somewhere close.

Le7316

AE-Racer ,

I did tried that too the outcome still the same . How did hook up yours ?


Thanks

AE_Racer

I did not/do not have a RSX sub setup. The start up thump is somewhat common to system installs and is usually a ground issue, or could be "noise" getting in your rca's.

Can you explain your wiring a little better? Are the RCA's converted to speaker wire to connect to the amp, or?

Le7316

You are correct on the RCA's . One end connected from the Sub-out ( Alpine HU ) the other end hardwired directly to the Bose Amp ...

Le7316

I have tried two different sets of RCA's and tried different source ( 12V ) too .

AE_Racer

Hmm.. Weird. Maybe you could try an actual adapter?

http://www.crutchfield.com/p_136XDCL...9210745&awdv=c

Le7316

Yea but I don't think this adapter going to solve the problem . Thanks for the suggestion tho .

Anyone else ?

AE_Racer

Another thing you can try is a relay between the remote and amp. This would slow the amp turning on for a second and allow the HU to power up first.

Le7316

Good suggestion ... Think I'm going to use the one from Radio Shack # 275 -0226 . Wish me luck lol . Thanks man

Andy