agreed - not a rewarding colour to polish, you can only work on the depth of shine and try to acheive a wet gloss look, you cant enhance the colour only the gloss
get the right one for your colour car mate
Dodo Juice Diamond White is Perfect for white, silver and other light coloured cars
i use hard candy on my GM
layering will be fine
a lot of detailers use dodo as it gives a long lasting lustre, better than p21s imo, deeper shine
i've found dodo works well with the first application but improves if you give it another coat the day after
+1 does sound like the fuel pump is being immobilised, the whir is the pump priming the system so it is under pressure and ready to start
have you got a spare key you can use ? incase its a problem with the transponder chip
www.detailedobsession.com
i've used this site a lot i know gareth who runs it does a forum discount for the passion ford guys, so mention this thread if you order