Default Issue with Bluetooth. ..

Hello all,
I'm having some problem with Bluetooth when i paired it with My car player.. while the song is being played, if i switch off and On the ignition of my car, the song stops but after switching ON the ignition, the song doesn't resumes which should be n i need to repair the player with the phone. . What can be the prob? Cos i never had such issues with my previous devices. . Btw, I'm on G2V5.. THANKS...
Sent from my LG Optimus G Pro E980
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Phones:

Nokia 1100 ---> Nokia 2310 --> Nokia 5130 & Lava Arc 04--> SE Xperia Arc --> Sony Xperia Z (Sold, Miss it ) --> Fiery Red Nokia Lumia 720(gifted to bro) --> Samsung Galaxy Y (For some days. thankfully ) --> New LG Optimus G Pro (AT&T E980 Unlocked 32 GB version)