I posted earlier this month about my front and rear camera install in my '06 DB9 Volante https://www.6speedonline.com/forums/...installed.html . That project motivated me to revisit the GROM Bluetooth installation I did a few years ago and make it a bit more "complete."
I cut a piece of aluminum sheet, drilled a few holes in it, and sprayed it with black epoxy paint. Then I installed a USB port, an AUX port, the Naviks video source-selection switch, and an iPhone Lightning extension cable connected to an Apple HDMI adapter, which in turn connected to the HDMI port of the Naviks camera interface. The Apple HDMI adapter has a power input, so my iPhone charges when it's connected via either HDMI or the USB port.

I used a Scosche suction mount with a magnetic attachment to my phone case to hold the phone in place.

Connecting the Lightning cable and toggling the source-selection button allows me to mirror the phone screen to the DB9's nav display. We all know that the Gen 1 nav screen is not great resolution, but I find it acceptable for the parking cameras and even for Waze. Here's Waze mirrored to the nav screen (it actually looks quite a bit better than this...it's hard to photograph a display screen!):

Likewise, the GROM MST4 Bluetooth interface isn't ideal, but it gives me Bluetooth phone, Bluetooth music from my phone, and the ability to play from a USB flash drive. The flash drive is limited to 32GB and must be formatted FAT32, but that still allows a lot of songs. SanDisk makes a tiny 32GB flash drive you can buy for about $12 and it's hardly noticeable (see the first picture in this post).
Song selection is clumsy using flash drives, so I just have a separate color-coded flash drive for different genres and keep them in the ashtray (six of those tiny SanDisk drives fit in there easily).
This is Queen's "Somebody to Love" playing via USB (the display doesn't really have "gaps" in it like it looks in the word DISC in the photo; that's some kind of photographic anomaly):

All-in-all, I'm pretty satisfied.

 

Man that’s looking great…a lot of work I’m sure…but what results..