00 Celica: cleaning up previous owner's rat nest wiring HELP!

[iam7head]

Finally got around to take out the radio on my sister's 00 celica gts, the previous owner hooked up a pioneer HU, but it seems to running with some RCA output to the car.

btw, the reason i mess with it is because we are getting a constant buzz when the radio is on, it's almost like a static.

i took out the rca, solder everything and to my surprise the buzz is gone but the volume seems to be way high. For example: if i turn the up the vol slightly higher, the overall noise lever is almost unbearably loud.

so what's the deal? does the celica require some sort of installation wiring kit?

thanks, any input would helps!

[DjiNN]

Originally Posted by iam7head

Finally got around to take out the radio on my sister's 00 celica gts, the previous owner hooked up a pioneer HU, but it seems to running with some RCA output to the car.

btw, the reason i mess with it is because we are getting a constant buzz when the radio is on, it's almost like a static.

i took out the rca, solder everything and to my surprise the buzz is gone but the volume seems to be way high. For example: if i turn the up the vol slightly higher, the overall noise lever is almost unbearably loud.

so what's the deal? does the celica require some sort of installation wiring kit?

thanks, any input would helps!

RCA's ARE BAD .... ALL pioneer units has this problem ...






Just ground the RCA's to the body of the headunit and you won't have that buzzing sound again ..

[Mr Marv]

Originally Posted by iam7head

Finally got around to take out the radio on my sister's 00 celica gts, the previous owner hooked up a pioneer HU, but it seems to running with some RCA output to the car.

btw, the reason i mess with it is because we are getting a constant buzz when the radio is on, it's almost like a static.

i took out the rca, solder everything and to my surprise the buzz is gone but the volume seems to be way high. For example: if i turn the up the vol slightly higher, the overall noise lever is almost unbearably loud.

so what's the deal? does the celica require some sort of installation wiring kit?

thanks, any input would helps!

Is the noise only present when the radio is on or is it also there when playing a CD etc? Also, when you say you "took the RCA out and soldered everything", was the RCA not connected to an amp and what exactly did you solder? BTW, I have sold/installed countless Pioneer headunits and none of them had noise issues however I have diagnosed several for others. If you do have noise related to the headunit it's most likely the pico fuse which gets blown by "hot swapping" (removing/installing RCA's while the unit is powered on) and if grounding to the headunit stops the noise it's a good bet that's what happened.