Off topic. mustang stereo question

[matt1190]

Hey guys. For those of you who have some sort of knowledge pertaining to stereos, help me out please!

I installed an Alpine CD player in my old Mustang and it works great except for one thing. If I turn the car on, or turn the accesory switch on, sometimes the unit will power up but not produce any sound. This began ever since I installed it. While dealing with my frustration I started to randomly fumble with other things in the car, like turning the heater on and off, and then the sound came through! There's dead silence from the stereo and as soon as I turn off any interior electrical item (headlights, windhshield wipers, etc.) it'll go **click** and the sound will turn on.

I'm pretty sure I have a good ground to the unit and I know that I have the power leads correct. Everything is getting power except the speakers. What do you guys think?