Hi guys, got my 08 Polo GTI last week (pretty big upgrade coming from a 94 celica) and thought I'd come here do hopefully get some things clarified about my car from some of you more experienced folk.

1. The other day the diy car wash I chucked my keys and wallet in the car so I wouldn't have to hold them, and a few minutes later when I went to get them, the car was locked! Luckily my brother had the spare and could come help me out. Any one else had this happen and know how to get it fixed?

2. I could've sworn this only started today but having to press twice to unlock the passenger door, is this normal, and can you change this behavior?

3. I've been lurking through some of the old threads here looking for an upgrade to this head unit or a possible way to add aux but all of the old links seem dead. Anyone know of a cheap way to get AUX or a double din that fits in well with the design of the rest of the car (so far looking at the Eonon D05101)

Any help as well as some basic tips that you guys would've loved to have found out earlier would be appreciated =)

Thanks in-advance,
Mario