47-55.1 stereo install in AD cab, my ideas

[leegreen]

thanks for the feedback, I do have some concerns about under the dash for the reasons you state.
I have been driving manual trans for ever and the tach is not something I look at often. This is a 250 with a T5, I wont be racing, I have no need for a 4" tach on the dash with a huge red shift light. My use is more for 'if I hold this gear/speed on this hill how hard am I cooking it', or when family members drive it.