The Millennium Stadium has suffered disappointing crowds in recent years
Neville Southall has backed a Football Association of Wales proposal to move some Wales qualifying internationals away from the Millennium Stadium.
The Wales goalkeeping great says the plan to take World Cup and European qualifiers around Wales is "sensible".
"The Millennium Stadium is one of the world's best stadiums," said Southall.
"But if you're not going to fill it then the idea to take the games to Swansea, Llanelli and Cardiff's new stadium seems quite sensible."
The FAW's International Committee will discuss the proposal to play some qualifiers at the Cardiff City Stadium, Swansea's Liberty Stadium and the Parc y Scarlets in Llanelli at their next meeting on 15 September.
But the proposal suggests the Millennium Stadium, which has hosted all Wales' qualifiers since 2000, will continue to host the big box office matches such as Italy, England and Germany.
It shouldn't matter how many people are in the ground because you're playing for Wales. If you need the crowd to motivate you to play for your country, then you're bonkers
Wales great Neville Southall
The FAW, however, is set to end its Millennium Stadium qualifying season ticket initiative at the end of this campaign as Welsh football's governing body considers taking the nation team's qualifiers on tour.
Any plan would have to be ratified by the FAW's full council at their next council meeting.
"I believe it is a good idea," said Southall. "The new stadiums in Cardiff, Swansea and Llanelli are magnificent arenas and it's good because you're giving other people in different areas a Wales a chance to watch top-class international football."
Wales were once the best supported European nation when Mark Hughes' men were on the brink of qualifying for the 2004 European Championships, averaging 73,000 during the Euro 2004 qualifiers.
But the Welsh national team have been in transition since high-profile retirements of players such as Gary Speed, Ryan Giggs, Robbie Savage, Mark Delaney and John Hartson.
Wales have enjoyed just one crowd of more than 30,000 fans in their last 10 qualifiers and captain Craig Bellamy has bemoaned the lack of Millennium Stadium atmosphere after 22,604 watched Wales' 2-0 defeat to Finland in April.
So the FAW hopes the smaller grounds will create a more intense atmosphere to spur on John Toshack's side when Wales face second-tier opposition.
But Southall insists: "It shouldn't matter how many people are in the ground because you're playing for Wales.
"If you need the crowd to motivate you to play for your country, then you're bonkers.
"I've played in some places like San Marino, Faroe Islands and Iceland there was nobody there, it was like playing in my back garden.
"It's not soul-destroying but obviously you would like better crowds.
"We used to play qualifiers around the country at the old Vetch Field in Swansea, the old Ninian Park in Cardiff and at Wrexham's Racecourse Ground and the players used to enjoy the change."
Wales have played friendlies at Wrexham but the Racecourse does not meet Uefa's strict qualifying stadium criteria for competitive games. But it will be considered once it is redeveloped to meet Uefa standards.
Cardiff manager Dave Jones, whose side have enjoyed a 100% start to life in their Cardiff City Stadium, says the Bluebirds would welcome Wales into their new £50m 26,500-capacity home.
"It would not just be great for the fans but fantastic for the international players," said Jones.
"I know John Toshack will not be disappointed with the facilities or the pitch at our new ground. The facilities are just as good as the Millennium Stadium, if not better.
"The Millennium is a fantastic venue but only if it is full.
"The problem at the Millennium Stadium is it seems very empty even when there's 30,000 fans there. And to play in a half-empty Millennium Stadium, it's very airy and just doesn't feel right.
"Both the Liberty Stadium and our ground are magnificent and boast a fantastic atmosphere when they're full."
So Wales' final home 2010 World Cup qualifier against Russia on Wednesday, 9 September could be their last guaranteed qualifier at the Millennium Stadium.
The Uefa 2012 European Championships qualifying draw will take place in Warsaw on 7 February.
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