Denso Gm Navigation #25797978 In Non Bose

[smudge122]

What would it take to install a Denso GM Navigation #25797978 into a non Bose 08 silverado?I've tried numerous searches and can't seem to find a straight answer.

[lhr360]

you would have to add an amp because factory nav radios do not have an internal amp, that is why they are only offered with bose stereo

[abear0232]

How much is the Denso??