I have bought an add-on for my car stereo (GROM USB3) which adds USB and Bluetooth capability for playing music and answering calls. This module is contained in a little box with 4 ports, and connects to the back of the OEM radio unit through the CD Changer interface. Its size is approx. 10cm x 7cm x 2.5cm (4" x 2.7" x 1").
With some help, I removed the radio and AC panel and did the necessary connections. So far, it works really well.
What bothers me is that I placed this little box on the car floor, right next to another "box" which is the SRS Airbag controller module, separating them by a sponge-type foam to reduce vibration. This has a big warning sticker on top of it and is covered by a transparent plastic sheet pasted on its top side only. I did not touch its connections. The car is a 2006 Subaru Legacy.
My question is: Is this risky? I was thinking about electromagnetic interference between these items or its cables, or static electricity building up (because of the foam). My fear is that the airbags could be activated randomly.
I attach a picture of the box placement. The cable on top of the SRS controller is the cable running from the back of the radio to the GROM add-on (labeled SUB08). The black foam is the one I added, the yellowish one was already there.
Thanks for comments and suggestions.