I've talked to him. This is what I got in response.
Hello, the cost to install AUX jack is $45 + $15 shipping back .
The AUX jack can be install most of the radio but some of them , it don't have space to install, that case it may be add external, it will require install it in the car and remember you will need to unplug when use the Fm section so it must be assessable .
If you have the same Radio as i sale , it will do the same as the one you see.
Please box the radio careful and send to:
Stereo and video repair co
Attn: John
9155 Archibald ave # 109
Rancho Cucamonga CA 91730
Please send with the money order or cashier check for quick return ( payable to:
Dung Nguyen ), if you have paypal please send money to:
johnnguyen321@gmail.com
Most of the aux install with out repair will take 2 days to return.
Thanks.
I'm going to send mine off.