I recently added another amp to my car. Along with that I upgraded my power/ground wiring from 4ga to 0ga. I did nothing to my IPOD touch/head unit.

Now my IPOD touch will not shut off when I turn of my car, even after I close the door and the interior lights go out.

For now I just turn off my car, unplug my IPOD touch, then turn off the IPOD touch, and plug it back on when I return.

Before this recent install I would just simply turn off my car and when I would return the IPOD touch would resume playing were I left it.

Any help, or was I just lucky before this all happened?
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2 subs---------------------->Kenwood eXcelon KFC-XW12R
2 amp subs---------------->Kenwood eXcelon KAC-X1R
Door speakers------------->Kenwood eXcelon KFC-1720P
Amp for door speakers--->Kenwood eXcelon KAC-X40
Head unit------------------>Kenwood eXcelon KDC-X791 w/iPod Direct (KCA-iP200)
Dynamat on all four doors, plus trunk gate.
Optima Yellow Top
0ga wire
WISHLISH--------> HO Alternator