Newbie with an aftermarket question
 

I've spent a lot of time over the last 20 years on miata sites - until last week i owned 3 miata's... now i'm down to two. i recently purchased a really nice, well maintained 2009 Mazda 3 S Sport hatchback for my daughter and have been very impressed with it so far. sometime in the next few days i plan to install an Eonon aftermarket radio system with bluetooth, navigation... all that stuff. it also supports a backup camera and i was wondering if any of you had mounted a backup camera on a comparable car (2004 - 2009 or so hatch) and where did you mount it. i'd like some suggestions. underneath that big old, honking wing sure looks inviting and easier than getting it down by the tag, but i'm open to suggestions. Thanks for your help and i look forward being a part of this forum.