Tonearm junction box?


I have reorganized my equipment according to my needs but have encountered a problem, the tonearm cable is not long enough to reach the preamp. I have several sets of cables but they are the same size. I thought that rather than buying another set I could build a junction box using a small enclosure.

Mine is an average stereo system [Klyne XP6/SME 3009/Benz MC20E2L.

Please advise

Best regards.