Peter,
That truly "sounds" like a promising agenda.
I would strongly recommend however that you also install a bass amplifier: it won't transform the Aldermog into a Boombox, but you will get a more defined sound.

Have a great day! I'm currently in Bristol having a Boom...Breakfast after 2 hours of driving in the [boring] motorway. The fun part should begin shortly...

Cheers,
Vladimir

vMog is a 2013 +4/ 4 seater, dark red with saddle brown trim, wooden dashboard and console.