couple months ago i got a double din deck installed in my car, kenwood ddx370 i love it ! only had one problem since and thats because i also had front speakers installed by my friend. he did an alright job except the electrical tape was cheap and it sorta unraveled itself, touched the panel and caused the deck to go into protect mode. long story short i fixed the wires and i had to detach the ground wire on my battery ( or so i was told by future shop ) so it will reset itself. i did that but i saw a tiny spark on the ground wiring on the battery. now when i get out of my car and lock it, the interior lights stay on for about 15 seconds before they shut off. before they would go off right away. thoughts on why they take so long to shut off now? thanks!