This may be in the wrong fourm, but ive been having some trouble recently with my amp and sub. I have a pioneer 77mp headunit, infinity 6x9s, 300w infinity amp and an infinity sub. All was working fine until i had to take my amp out to fit something in my boot and ever since ive been having nothing but problems.
Firstly, whenever i turn the car on and the headunit comes on (whether on ignition or fulyl started), whatever the amp is connected to (sub or speakers) pops loudly.
Secondly, when the amp is connected to the sub, there is a high pitched whine coming from the sub, and when i rev the car, the whine gets higher in pitch aswell.
Ive checked the remote cable and thats fine, no cables have been removed or disconnected since before when it was all working perfectly.

Any help would be gratefully received.

Rob.

(Appologies if this is in the wrong forum)