so i went to a dealer as i needed a new car asap and they had one golf 118 TSI manual available. Perfect i though. anyway i dont want to pay $2000 for them to do a stereo.
Can i buy a RCD-510 off ebay and then get my Volkswagen dealer to fir it and the MDI and maybe Bluetooth in?

And then get a private installer to do the amp and speakers?

My main worry is that VW dealer will say no or that getting a private installer to do the speakers/amp will void the warranty.

i apologies if there is another thread, i just need an answer as i pick up the car on Tuesday and need to know if i should just fork up the cash and get the dealer to do it all