
Hi folks been a while since I been here, anyway a problem I have that is quite frankly getting on my goat, couple months back I started up the car and I could hear what sounded like a fuel pump noise, I put my ear to the footwell next to the pump and it sounded fine, I accidentally switched the radio off while I was listening in the footwell and the noise went away



well I went to fit a new kenwood mp3 unit last night and hooked it all up correctly and all works, I later took the car out and as soon as I started the engine the noise I had previous was back this time with vengeance, I quickly put my old unit back in and it made no difference, no matter what unit is in now, the noise is continuous, no amount of wiggling leads etc makes it go away.


I did find a guy on youtube with the same problem the noise you can here in this video is exactly the same as Im getting, is this common problem among aftermarket units.


http://www.youtube.com/watch?v=rIA_-ZjER-E

The MR2 is 1993 Import Rev2 with the Active Sound System, my Kenwood hooks up via iso connector that also has RCA plugs for which I plug straight into the back of the head unit, after 4 years of ownership Ive never had a problem until recent, I dont really want to swap out the stock amp and speakers as the stock sound is fine it all worked fine before so why should it be any different all of a sudden

I hate anything to do with wiring but one thing I did notice when I first bought the car and fitted my first radio was why I didnt work when I first initially hooked it up, Ive had all fords and with them you just plugged the block connector in the back and lights on radio working but with my mr2 no head unit will power up unless the Arial is plugged in, I never listen to the radio so Ive never hooked up the aerial leads in previous cars, so is this radio ground because I thought using an aerial for ground would be a bad idea,.
