The best method to repair existing 5-pin socket is to remove socket assembly from radio --
so you have Full-Access to the pins for repair.You expand your DIY Repair skills by hours spent on the bench and new challenges in repairs
Good QUALITY Bench Tools and Dexterity/Soldering skills -- make all the difference in this level of work.
Small vise (like Pana-Vise) to holder socket assembly (third hand)
Solder Wick, I prefer American Beauty Dri-Wick (.098"/.093" or .130" for this usage)https://www.americanbeautytools.com/site/Accessories
Allied Electronics is a distributor for American Beauty Dri-Wickhttp://www.alliedelec.com/search/searchresults.aspx?dsNav=N:4294879792-4294880131-4294966762-4294965409
Open up solder wick in order to "draw out" more solder from inside the pins.
Liquid solder flux helps with poor quality solders or no-clean versions with low flux formulations.
Sewing needles can help in "opening up" the pin.
A desoldering iron could be used, but are not always effective in this type of work.
BEST, Inc. Soldering / Desoldering Videos (TIPS, not full instructional videos)http://youtu.be/G14rFgAfwXk