Need the 4 digit code for a kenwood vr-405 reciever with my kenwood rc-ro509 remote..stop working?

i did some research found out that it wasn't at all...the remote Kenwood needed to do a recall on alot of those recievers,but failed to do so. there is actually a really easy fix,if u have a sodier gun and alittle patience,oh and a phillips head screwdriver. its actually the laser eye inside ur reciever,faulty sodier joints..sounds confusing but trust me i gave it a whirl and works fine now and still rockin.anyway pull the cover off reciever..(of course unplug it first) and expose internal board look towards the front there's a little sytem board.(dont know actual name) if i remeber right a few screws and one plug to expose it you'll see the little red eye.look on the sodier points where it attaches u'll see cracks,hell just touch it real quick just to melt back toghther, bingo was his name o.. snap **** back toghther it'll work man..blew my mind..i was gonna throw it across the living room glad i didnt. let me know pass the knowledge and complain at kenwood,like me and my friends are.. i did some research found out that it wasn't at all...the remote Kenwood needed to do a recall on alot of those recievers,but failed to do so. there is actually a really easy fix,if u have a sodier gun and alittle patience,oh and a phillips head screwdriver. its actually the laser eye inside ur reciever,faulty sodier joints..sounds confusing but trust me i gave it a whirl and works fine now and still rockin.anyway pull the cover off reciever..(of course unplug it first) and expose internal board look towards the front there's a little sytem board.(dont know actual name) if i remeber right a few screws and one plug to expose it you'll see the little red eye.look on the sodier points where it attaches u'll see cracks,hell just touch it real quick just to melt back toghther, bingo was his name o.. snap **** back toghther it'll work man..blew my mind..i was gonna throw it across the living room glad i didnt. let me know pass the knowledge and complain at kenwood,like me and my friends are..