Bee u

I wanted to upgrade mr radio receiver  so I can charge and play my iPhone. The radio shop I spoke to said I caint  because the do not make a dash conversion kid and would not look good. So after researching  I found a conversion  wiring kit that after removing you radio they have a wiring kit that plugs into CD player from Hong Kong for life  $ 18.00. I'm gonna put a couple of 12 inch speakers in the trunk.  Google or Look up 3mm jax aux in interface adapter for Lexus GS 430 Do you think that would work if I showed them that