will106106
Junior Member
I am at an end with car audio, and would not be posting a redundant question if I thought something I haven't read would be within the first 30 pages on google. As stated above, I have gained the dreaded popping and whining through my system.
A little info:
Hu: avh2300(pioneer double din)
Speaker: Treo 6x8
Tweeter: interfire w/ passive high cross
Amp:400watt/4channel
Ok so my system was working fine which was the speakers\tweeters and an amp and sub(not mentioned above) THEN greedy me decided I wanted to amp the front speakers. I bought the 400w/4channel and hooked it up. It sounds GREAT with the key only in acc. Now when I turn the car on I get a very fast clicking/popping(3-4 times a second) and altenator whine.
-the clicking has no dependence on volume/ engine RPM
-the whine IS dependent on engine RPM
-no clicking or whine when head unit is off and car engine running
-seemingly less of a click noise when rcas are unplugged from the head unit(still in amp)
-all noise gone when rcas unplugged from amp(still in headunit)
What I have tried:
-FIVE different locations tried for amp ground( currently on the bare chassis(completely sanded, star washer on round washer) it is however now at the same spot as the subwoofer amps ground(only 1 of the 5 locations where they the same ground spot(no change in pitch/volume of clicking between the different spots tried.
-the two amp ground wires(remember I have a mono kicker in trunk and 4channel under driver seat) are same gauge and distance, and same gauge as power
-I have tried 3 different grounding spots for the headunit.(factory ground via harness, then spliced that to the chassis(again bare metal), and I tried splicing it to the amp ground terminal.
-I have grounded the rca outs on the headunit(the wire figure 8 around the outputs then to a screw)
- I have purchased a bandaid ground loop isolator. I plugged it in on the amp side rather than headunit(is this right?)rca plugs. It had two ground wires that I put on the amp ground terminal. This did absolutely nothing for the trouble noises, just extended my rcas a couple inches for 20$.
- I plugged a DMM one end on the amp neg terminal and one to amp chassis ground spot. It reads 0.00
-
I have worked for over a week in the Texas heat on this stupid problem and would not like to admit defeat and take it to car toys for 200$
A little info:
Hu: avh2300(pioneer double din)
Speaker: Treo 6x8
Tweeter: interfire w/ passive high cross
Amp:400watt/4channel
Ok so my system was working fine which was the speakers\tweeters and an amp and sub(not mentioned above) THEN greedy me decided I wanted to amp the front speakers. I bought the 400w/4channel and hooked it up. It sounds GREAT with the key only in acc. Now when I turn the car on I get a very fast clicking/popping(3-4 times a second) and altenator whine.
-the clicking has no dependence on volume/ engine RPM
-the whine IS dependent on engine RPM
-no clicking or whine when head unit is off and car engine running
-seemingly less of a click noise when rcas are unplugged from the head unit(still in amp)
-all noise gone when rcas unplugged from amp(still in headunit)
What I have tried:
-FIVE different locations tried for amp ground( currently on the bare chassis(completely sanded, star washer on round washer) it is however now at the same spot as the subwoofer amps ground(only 1 of the 5 locations where they the same ground spot(no change in pitch/volume of clicking between the different spots tried.
-the two amp ground wires(remember I have a mono kicker in trunk and 4channel under driver seat) are same gauge and distance, and same gauge as power
-I have tried 3 different grounding spots for the headunit.(factory ground via harness, then spliced that to the chassis(again bare metal), and I tried splicing it to the amp ground terminal.
-I have grounded the rca outs on the headunit(the wire figure 8 around the outputs then to a screw)
- I have purchased a bandaid ground loop isolator. I plugged it in on the amp side rather than headunit(is this right?)rca plugs. It had two ground wires that I put on the amp ground terminal. This did absolutely nothing for the trouble noises, just extended my rcas a couple inches for 20$.
- I plugged a DMM one end on the amp neg terminal and one to amp chassis ground spot. It reads 0.00
-
I have worked for over a week in the Texas heat on this stupid problem and would not like to admit defeat and take it to car toys for 200$
Last edited by a moderator: