Hello James 
GPS receiver = pop your intrument cluster out and pop it in, there is loads of space and works fine under the fascia pad material.
Reverse feed = forget it, unless you are Russ Swift and intend to drive in reverse a lot. The sat.s will pick up that you're no longer going forward and adjust your journey accordingly without the reverse feed.
...as for speed signal, not sure, sorry...
hope this helps BTTT
danny.
GPS receiver = pop your intrument cluster out and pop it in, there is loads of space and works fine under the fascia pad material.
Reverse feed = forget it, unless you are Russ Swift and intend to drive in reverse a lot. The sat.s will pick up that you're no longer going forward and adjust your journey accordingly without the reverse feed.
...as for speed signal, not sure, sorry...
hope this helps BTTT
danny.