Audio Problem...Help!

[oallauddin]

I have a 1 year old pioneer HU with bose speakers connected with a Scosche adapter. When i turn the music on the sound is fine....but in about 3 minutes the high frequencies in my passenger door speakers distort badly. The distortion increases with the volume. it's only that one speaker. Here is the tricky part....ive replaced the woofer, amp, and tweeter and i still have the same problem. is it the HU? omg im ripping out my hair...please give ur opinion.

[NIGHTMAREuki]

well there is only the HU left to replace

[oallauddin]

yes, you are right....ive made a call to borrow my friends spare headunit...is it possible for one channel in a HU to go bad?

[NIGHTMAREuki]

if its all doors maybe there is something with the power source

[z00medu]

sure the speaker itsself isnt blown??? could be that as the speaker "warms" it stretches further