Hey all first time poster,

I have a 2005 Cadillac CTS that has full Bose. Under the arm rest there is rca plugs, I've gone and bought rca to headphone jack leads but I cant get it to play music from my phone.

If this can't be done has anyone fitted one of these?
2 DIN Android 4.0 Car GPS DVD Player WIFI 3G BT USB Radio Stereo+Tablet+Camera | eBay

Are they good units?

Thank you