Ok, so I have a few potential good options after speaking to my audio guy.
JL Audio make powered subwoofers with amps in the enclosure. These are compact and easily removable with just 1 connection. A little velcro, disconnect the single plug and it comes out.
https://www.jlaudio.com/collections/...-systems-93335
Option 1) This can be installed in the rear of the car and again is easily removable.
Option 2) This could potentially be installed in the space underneath the floor in the back. I assume this could also be for a spare tire.?
Option 3) Possibly under the driver or passenger seat, space permitting.
I haven't taken delivery of my new X7 yet. Could someone please confirm:
A) Dimensions of the space in the area under the false floor in the trunk area?
B) Dimensions of the space under the driver or passenger seat?
If A and B are not viable I will just have it in the cabin of the trunk/rear area with velcro and the single plug so it can be easily removed.
Any of these options should only require a half day of labour for a full good install.
Thanks