Heater leaking onto carpet. I have instructions from Ronnie's site. Starting to tear into it today. Only problem so far has been disconnecting some of the wiring. I understand that the only under hood work is to drain coolant, disconnect battery and heater hoses. All other work is done thru glove compartment opening and under the dash. Am I heading in the right direction, and can anyone furnish any tips/helpful advice? Thanx, Jim