Start: no stock radio sound (Harman Becker HB9583), but instantaneous cracks from speakers, removed fuse, then nothing.
Now: radio out of dash hanging, but all wires still connected. radio head with connected box below. Bought BOSS 550B after market head
not knowing all other complications. Did Basic electronics and radio install in the distant past. Found speakers connections OK, but
Question: How to use new head without losing all other functions (GPS, Status of oil, brake change, etc.).
Great Fears: Car won't start; other electrical problems, never have radio sound again, shunned by friends. Budget Replacement Avail?