I Have a 97 Volvo Penta 4.3GLPLKD with an SX-C1 1.85 Outdrive. I've searched the forums high n low and searched the manual. There are many different types of Ignitions(key). What type do I need? How can I determine which one will work. OEM is $60. I found others on iBoats from $12-$35. Any ideas? Volvo Penta 4.3GL-PLKD #4110144649, 3868618